public class code {
    public static void main(String[] args) {
        int count = 0;
        for (int i = 1000; i <= 2000; i++){
            if((i % 4 == 0 && i % 100 != 0) || (i % 400 == 0)){
                System.out.print(" 是闰年"+i);
                count++;
            }
            if(count % 10 == 0){
                System.out.println(" ");
            }
        }
    }
}
